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| Naji, M. |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Kočí, Jan | Prague |
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| Azevedo, Nuno Monteiro |
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Ramault, Carla
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Topics
Publications (9/9 displayed)
- 2010Composite material characterization through biaxial testing of cruciform specimens
- 2010Numerical failure analysis of composite structures
- 2009Biaxial Failure Envelopes for Glass Fibre Reinforced Composite Laminates
- 2008The Influence of Biaxial Stress States on the Stiffness of Glass Textile Reinforced Cementitious Composites
- 2008Biaxial Mechanical Fatigue using Cruciform Composite Specimens
- 2008Biaxial testing of fibre reinforced composite laminates
- 2007Experimental and theoretical study of the damage onset in biaxial cruciform specimens under static and hysteresis loading
- 2007A Review Of Biaxial Test Methods For Composites
- 2007Towards the characterisation of biaxial material performance
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document
The Influence of Biaxial Stress States on the Stiffness of Glass Textile Reinforced Cementitious Composites
Abstract
The application of glass textile reinforced cementitious composites (GTRC) in slender building elements such as plates or shells, can be advantageous over the widely used steel-reinforced concrete. As the glass fibre diameter is three orders of magnitude smaller than the typical steel rebar diameter, very thin and/or freeform plates and shells can be designed. In these two-dimensional elements however, complex biaxial stress states can occur under various load combinations. Up to now, only the uniaxial behaviour of GTRC is studied extensively: GTRC behaves approximately linear in compression, but is highly nonlinear in tension. In this paper, biaxial tensile tests are carried out on cruciform GTRC specimens and observed with the Digital Image Correlation technique. Experimental results are described and compared to a numerical model in the finite element program Abaqus. First results show that the uncoupled stress-strain behaviour in both principle stress directions leads to an underestimation of the biaxial stiffness of GTRC.